CRM37883

1,4-Dimethylnaphthalene

certified reference material, TraceCERT^®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

• Linear Formula: C₁₀H₆(CH₃)₂
• CAS Number: 571-58-4
• Molecular Weight: 156.22
• Beilstein/REAXYS Number: 2039842
• MDL number: MFCD00004037
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material; TraceCERT^®
• Quality Level: 300
• product line: TraceCERT^®
• shelf life: limited shelf life, expiry date on the label
• manufacturer/tradename: Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
• refractive index: n20/D 1.613 (lit.)
• bp: 262-264 °C/751 mmHg (lit.)
• mp: −18 °C (lit.)
• density: 1.016 g/mL at 25 °C (lit.)
• format: neat
• storage temp.: 2-8°C
• SMILES string: Cc1ccc(C)c2ccccc12
• InChI: 1S/C12H12/c1-9-7-8-10(2)12-6-4-3-5-11(9)12/h3-8H,1-2H3
• InChI key: APQSQLNWAIULLK-UHFFFAOYSA-N

Description

General description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ. Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate. Download your certificate at: http://www.sigma-aldrich.com

Application

1,4-Dimethylnaphtalene is a growth inhibitor used to enhance dormancy and retard sprouting in harvested potatoes. It has a very low aqueous solubility and is highly volatile. As per the regulation (EC) No 1107/2009 it is approved for use as plant protection product in the European Union. Maximum residuel levels (MRLs) have been set for 1,4-dimethylnaphthalene according Reg. (EU) No 2022/1346 for various products of plant and animal origin from 0.05 - 15 mg/kg. The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques.

Environmental

Legal Information

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H304,H319,H410
• pcodes: P264 - P273 - P280 - P301 + P310 - P305 + P351 + P338 - P331
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Irrit. 2
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• flash_point_f: 235.4 °F - closed cup
• flash_point_c: 113 °C - closed cup